High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control

被引：4
作者：
Kindl, Vladimir [1 ]
Zavrel, Martin [1 ]
Drabek, Pavel [1 ]
Kavalir, Tomas [2 ]
机构：
[1] Univ West Bohemia, Fac Elect Engn, Plzen 30614, Czech Republic
[2] Univ West Bohemia, Fac Mech Engn, Plzen 30614, Czech Republic
来源：
ENERGIES | 2018年 / 11卷 / 08期
关键词：
wireless power transfer; phase-shift control; resonant coupling; shielding; efficiency; ENERGY-SOURCES; COIL;
D O I：
10.3390/en11082065
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The paper presents optimal operating point tracking algorithm for wireless charging system using identical coupling coils providing us to meet simultaneously high efficiency and high transmitted power under varied load and detuning conditions. The proposed method is suitable either for purely resistive load or battery load and it is based on phase-shift control between the primary and the secondary voltage. The paper also gives an intuitive mathematical description of the key control idea and demonstrates its operational abilities. The proposed algorithm is finally implemented into digital signal processor (DSP) and tested on 4 kW laboratory prototype of shielded wireless power transfer system.
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页数：19
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